Add Samsung Flip Pro WM55B support and screen-edge touch behavior - #1
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Add Samsung Flip Pro WM55B support and screen-edge touch behavior#1mickfa-dai wants to merge 1 commit into
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Hi,
thank you for HIDTouch. I tested it with a Samsung Flip Pro WM55B (LH55WMB) on macOS 26 using a direct USB-C connection and was able to get it working reliably.
This PR contains two compatibility improvements discovered during the WM55B setup:
Calibration initially failed with:
the four samples are collinear or identicalThe normal multi-touch path already uses the descriptor-derived
MultiTouchParser, while calibration was still using the generic single-touch parser.The calibration path now uses
MultiTouchParserwhen a multi-touch layout is available, with the original parser retained as the fallback for single-touch panels.On the Samsung Flip Pro WM55B this fixed calibration and resulted in a mean residual of approximately 0.3 px.
A one-finger touch is normally injected as a pressed mouse event. At the top or bottom screen edge this prevented macOS from behaving like normal pointer hover, so an auto-hidden menu bar or Dock would not reliably appear.
The change adds a mouse-move-only edge path:
Tested hardware
Samsung Flip Pro WM55B / LH55WMB
Verified
Additional hardware notes and the test report are included under
docs/wm55b/.I also experimented with three-finger navigation gestures, but deliberately removed that code from this contribution because the real panel's contact-count transitions were not deterministic enough for a stable implementation.
If you would prefer the calibration fix and the screen-edge behavior as separate PRs, I can split them.
Thank you for making HIDTouch available.
Best regards
Michael